240013513 has 2 divisors, whose sum is σ = 240013514. Its totient is φ = 240013512.

The previous prime is 240013493. The next prime is 240013523. The reversal of 240013513 is 315310042.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 240002064 + 11449 = 15492^2 + 107^2 .

It is a cyclic number.

It is not a de Polignac number, because 240013513 - 2¹⁷ = 239882441 is a prime.

It is not a weakly prime, because it can be changed into another prime (240013523) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 120006756 + 120006757.

It is an arithmetic number, because the mean of its divisors is an integer number (120006757).

Almost surely, 2^240013513 is an apocalyptic number.

It is an amenable number.

240013513 is a deficient number, since it is larger than the sum of its proper divisors (1).

240013513 is an equidigital number, since it uses as much as digits as its factorization.

240013513 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 360, while the sum is 19.

The square root of 240013513 is about 15492.3695088905. The cubic root of 240013513 is about 621.4581643143.

Adding to 240013513 its reverse (315310042), we get a palindrome (555323555).

The spelling of 240013513 in words is "two hundred forty million, thirteen thousand, five hundred thirteen".